diff --git a/kafka/protocol/broker_version_data.py b/kafka/protocol/broker_version_data.py
index 3d41e5a25..edabbd186 100644
--- a/kafka/protocol/broker_version_data.py
+++ b/kafka/protocol/broker_version_data.py
@@ -78,7 +78,7 @@ def api_version(self, operation, max_version=None):
         if broker_api_versions is None or api_key not in broker_api_versions:
             raise Errors.IncompatibleBrokerVersion(
                 "Kafka broker does not support the '{}' Kafka protocol."
-                .format(operation[0].__name__))
+                .format(operation.name))
         broker_min_version, broker_max_version = broker_api_versions[api_key]
         version = min(max_version, broker_max_version)
         if version < broker_min_version:
@@ -86,9 +86,12 @@ def api_version(self, operation, max_version=None):
             # no Kafka versions specify a min msg version. Maybe in the future?
             raise Errors.IncompatibleBrokerVersion(
                 "No version of the '{}' Kafka protocol is supported by both the client and broker."
-                .format(operation[0].__name__))
+                .format(operation.name))
         return version
 
+    def __str__(self):
+        return '<BrokerVersionData %s>' % '.'.join(map(str, self.broker_version))
+
     def __eq__(self, other):
         return self.broker_version == other.broker_version and self.api_versions == other.api_versions